Swash plate compressor piston

(19)

(11)

EP 1 134 411 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	25.02.2004 Bulletin 2004/09

(43)	Date of publication A2:
	19.09.2001 Bulletin 2001/38

(21)	Application number: 01106323.7

(22)	Date of filing: 15.03.2001

(51)	International Patent Classification (IPC)⁷: F04B 27/08

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

17.03.2000 JP 2000076013

(71)	Applicant: Kabushiki Kaisha Toyota Jidoshokki
	Kariya-shi, Aichi-ken (JP)

(72)	Inventors:
	Kato, Takayuki, K.K. Toyoda Jidoshokki Seisakusho Kariya-shi, Aichi-ken (JP) Katayama, Seiji, K.K. Toyoda Jidoshokki Seisakusho Kariya-shi, Aichi-ken (JP) Hoshida,Takahiro, K.K.Toyoda Jidoshokki Seisakusho Kariya-shi, Aichi-ken (JP) Enokijima,Fuminobu, KKToyoda Jidoshokki Seisakusho Kariya-shi, Aichi-ken (JP)

(74)	Representative: HOFFMANN - EITLE
	Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)

(54)	Swash plate compressor piston

(57) A piston (14) includes an engagement portion (70) that engages with a swash plate (60). The engagement portion is provided with a pair of arms (120,122) and a coupling (124) for coupling base ends of the arms. An axial rib (142) is integrally provided in a central part of a back surface of the coupling for reinforcement. An accommodation groove (160) is formed in the inner circumferential surface of a cylinder bore (12) corresponding to the axial rib, such that the axial rib does not interfere with the cylinder bore when the piston moves to the top dead center.

Search report